Perhaps you should try some spelling variations:
nhung phuong » dung phuong, nhu phuong, truong phuong
chieu sach » chinh sach, chiet tach, chieu sang
ho chieu » theo chieu, hoc thieu, doi chieu
vay luan » ly luan, von luan
bai luan » bai toan, li luan
van toan » van tan, van thanh, manh toan
van tuan » van quan, van ban, anh tuan

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sach - canh ((vay luan) OR (bai luan)) nhung phuong ((van toan) or (van tuan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - canh ((vay luan) OR (bai luan)) nhung phuong ((van toan) OR (van tuan)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - canh ((vay luan) OR (bai luan)) nhung phuong ((van toan) or (van tuan)) cau".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - canh ((vay luan) OR (bai luan)) nhung phuong ((van toan) or (van tuan)) cau*.